Import and export in AWS CloudFormation

 
- ContainerName: !Sub "${AWS::StackName}"
  ContainerPort: 80
  TargetGroupArn: { "Fn::ImportValue" : { "Fn::Join" : [ "-", [ { "Ref" : "EnvironmentType" }, "leo-elb-elb-target-group"]] }}

If EnvironmentType is sandbox, we are importing sandbox-leo-elb-elb-target-group as TargetGroupArn

# part of codes from stack sandbox-leo-elb
# export a resource called leo-elb-elb-target-group
# click Outputs tab in AWS console for this stack. Also see Export Name: leo-elb-elb-target-group
Outputs:
  ELBTargetGroupHTTP:
    Description: The target group
    Value: !Ref ELBTargetGroup
    Export:
      Name: !Sub "${AWS::StackName}-elb-target-group"

Git cherry pick

how to cherry pick codes from development to staging

1. need to find commit hash using git log
2. git checkout release/1-staging
3. git checkout -b feature/SMP-7777
4. git cherry-pick hash
5. git push --set-upstream origin feature/SMP-7777
6. create code review

If pick mutiple commits, start cherry pick from old one.

//example
git checkout master

git checkout -b feature/my-4247-hot-fix

git cherry-pick cd5861fb4c098855fe99b1eb74790874c6be4570 22dfcc0dd6064029da786637e3ceb3b5b5d00719

git push -u origin feature/my-4247-hot-fix